PCA9555AHF,128 NXP Semiconductors, PCA9555AHF,128 Datasheet - Page 27

• Manufacturer Part Number: PCA9555AHF,128
• Description: Interface - I/O Expanders
• Manufacturer: NXP Semiconductors

Specifications of PCA9555AHF,128

• Rohs: yes
• Maximum Operating Frequency: 100 kHz
• Operating Supply Voltage: 1.65 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: HWQFN-24
• Operating Current: 160 mA
• Output Current: 25 mA
• Power Dissipation: 200 mW
• Product Type: I/O Expanders

NXP Semiconductors
PCA9555A
Product data sheet
Fig 28. Interrupt load circuit and voltage waveforms
data into
a. Interrupt load configuration
b. Voltage waveforms
port
INT
C
All inputs are supplied by generators having the following characteristics: PRR  10 MHz; Z
All parameters and waveforms are not applicable to all devices.
INT
L
Pn
includes probe and jig capacitance.
SDA
SCL
S
START condition
t
v(INT)
View A - A
1
0
t
v(INT)
2
1
slave address
A
A
ADDRESS
3
0
4
0 A2 A1 A0 1
0.5 × V
0.5 × V
5
6
DD
DD
All information provided in this document is subject to legal disclaimers.
7
R/W
Low-voltage 16-bit I
8
Rev. 1 — 11 September 2012
9
A
acknowledge
from slave
DUT
t
rst(INT)
8 bits (one data byte)
INT
DATA 1
from port
DATA 1
SCL
INT
V
DD
R L = 4.7 kΩ
C L = 100 pF
t
su(D)
2
002aah069
R/W
C-bus I/O port with interrupt and weak pull-up
A
acknowledge
from slave
t
rst(INT)
View B - B
A
data from port
B
B
t
DATA 2
rst(INT)
o
DATA 2
= 50 ; t
no acknowledge
PCA9555A
from master
r
/t
f
 30 ns.
© NXP B.V. 2012. All rights reserved.
0.7 × V
0.3 × V
0.5 × V
1
002aah256
STOP
condition
P
DD
DD
DD
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